Answer: Done and done at least as far as the asking part goes. I thought we were getting somewhere when a Chuck casting call went out for a new character described as "an indescribably stunning 25- to 28-year-old undercover DEA agent" who attempts to drive a wedge between Sarah (Yvonne Strzechowski) and Chuck (Zachary Levi). C'mon, that's got Reeser written all over it! Unfortunately, I hear she's not even in the running. Bummer.